#673398
Closest named color: Rebecca Purple (#663399). oklch(44.1% 0.159 304.2), rgb(103, 51, 152).
Aa
White text reads best on this color (8.38:1).
About this color
#673398 is a dark, vivid purple. In OKLCH its lightness is 44%, its chroma 0.159 and its hue 304°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Rebecca Purple (#663399), ΔE 0.003 away. White text reads best on it, at 8.38:1.
| Hue family | Purples |
| Lightness | dark (44%) |
| Chroma | vivid (0.159) |
| Temperature | in between |
| Nearest name | Rebecca Purple (#663399) |
| Black text | 2.50:1 |
| White text | 8.38:1 |
Values
| HEX | #673398 |
| RGB | rgb(103, 51, 152) |
| HSL | hsl(271, 50%, 40%) |
| OKLCH | oklch(44.1% 0.159 304.2) |
Contrast
WCAG 2 contrast ratios are the conformance target: AA needs 4.5:1 for body text and 3:1 for large text, AAA needs 7:1. APCA Lc values are supplementary guidance from the WCAG 3 drafts.
| Pair | WCAG 2 | Result | APCA | APCA guidance |
|---|---|---|---|---|
| White text on #673398 | 8.38:1 | AAA | Lc -93.0 | Preferred for body text |
| Black text on #673398 | 2.50:1 | Fails | Lc 15.6 | Dividers and decoration only |
| #673398 text on white | 8.38:1 | AAA | Lc 88.4 | Fine for body text |
| #673398 text on black | 2.50:1 | Fails | Lc -13.8 | Not readable |
Tints and shades
A 50–950 scale built in OKLCH: the hue is held, lightness follows a Tailwind v4-like curve, and every step is kept inside the sRGB gamut. This color sits at step 800.
-
Step 50
50
#F7F4FC
oklch(97.2% 0.011 303.1)
-
Step 100
100
#EEE6F9
oklch(93.7% 0.027 304.8)
-
Step 200
200
#E0D1F6
oklch(88.4% 0.053 303.7)
-
Step 300
300
#CEB2F2
oklch(81% 0.093 304.4)
-
Step 400
400
#B587EB
oklch(70.7% 0.148 304.1)
-
Step 500
500
#A464E5
oklch(63.1% 0.191 304.4)
-
Step 600
600
#8F47D3
oklch(55.6% 0.207 304)
-
Step 700
700
#7A37B6
oklch(49.1% 0.192 304.3)
-
Step 800
800 (this color)
#673398
oklch(44.1% 0.159 304.2)
-
Step 900
900
#512B76
oklch(37.7% 0.125 304.4)
-
Step 950
950
#2F1A45
oklch(26.9% 0.079 304.1)
#673398 with color blindness
Simulated with the Machado et al. (2009) model. ΔE is how far the color moves: below about 0.02 you would not notice a change.
| Vision | Seen as | Shift (ΔE) |
|---|---|---|
| Protanopia (no red cones) | #004C9B | 0.126 |
| Deuteranopia (no green cones) | #134D96 | 0.121 |
| Tritanopia (no blue cones) | #5E4961 | 0.116 |
| Achromatopsia (no color) | #4D4D4D | 0.161 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #673398
#673398
oklch(44.1% 0.159 304.2)
- #465C00
#465C00
oklch(44% 0.11 124.2)
Analogous
Neighbouring hues, 30° either side.
Split complementary
The two hues beside the complement (150° and 210°).
Triadic
Three hues spaced 120° apart.
Palettes with this color
Curated palettes that contain a color within ΔE 0.04 (OKLab) of #673398, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rebecca Purple #663399 ΔE 0.003
- Dark Slate Blue #483D8B ΔE 0.062
- Blueberry #464196 ΔE 0.063
- Grape #7209B7 ΔE 0.069
- Chrysanthemum #560BAD ΔE 0.075
- Bluey Purple #6241C7 ΔE 0.080
- Purple #800080 ΔE 0.083
- Blue With A Hint Of Purple #533CC6 ΔE 0.085
Use #673398 in your product
Turn it into light and dark UI roles checked for contrast, then export to Tailwind v4, shadcn/ui, CSS or design tokens.